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diff --git a/gcc-4.9/gcc/testsuite/gfortran.dg/interface_8.f90 b/gcc-4.9/gcc/testsuite/gfortran.dg/interface_8.f90
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+++ b/gcc-4.9/gcc/testsuite/gfortran.dg/interface_8.f90
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+! { dg-do compile }
+! One of the tests of the patch for PR30068.
+! Taken from comp.lang.fortran 3rd December 2006.
+!
+! Although the generic procedure is not referenced and it would
+! normally be permissible for it to be ambiguous, the USE, ONLY
+! statement is effectively a reference and is invalid.
+!
+module mod1
+   interface generic
+      subroutine foo(a)
+         real :: a
+      end subroutine
+   end interface generic
+end module  mod1
+
+module mod2
+   interface generic
+      subroutine bar(a)
+         real :: a
+      end subroutine
+   end interface generic
+end module  mod2
+
+program main
+  use mod1, only: generic   ! { dg-warning "has ambiguous interfaces" }
+  use mod2
+end program main